KnowKi

Learn the wildlife of any country

Learn the wildlife of Belgium

Europe

11,441 species have research-grade observations in Belgium on iNaturalist. KnowKi turns the most recorded into short lessons with real photos, so you can learn a country's wildlife from home.

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Āki the kiwi, KnowKi's guide

Most recorded here

The species with the most research-grade observations on iNaturalist, and how many each has. Most recorded doesn't mean native.

Birds

  1. Mallard Anas platyrhynchos3,703
  2. Eurasian Coot Fulica atra3,420
  3. Grey Heron Ardea cinerea2,821
  4. Common Wood-Pigeon Columba palumbus2,571
  5. Egyptian Goose Alopochen aegyptiaca2,447
  6. European Robin Erithacus rubecula2,433
  7. Common Buzzard Buteo buteo2,377
  8. Canada Goose Branta canadensis2,237
  9. Great Tit Parus major2,114
  10. Carrion Crow Corvus corone2,095

Plants

  1. Lesser celandine Ficaria verna2,027
  2. Ground-ivy Glechoma hederacea1,931
  3. Wood anemone Anemonoides nemorosa1,896
  4. Herb Robert Geranium robertianum1,835
  5. Garlic mustard Alliaria petiolata1,834
  6. Red deadnettle Lamium purpureum1,744
  7. Great stinging nettle Urtica dioica1,736
  8. Lawn daisy Bellis perennis1,707
  9. Sycamore maple Acer pseudoplatanus1,607
  10. European black elderberry Sambucus nigra1,509

Mammals

  1. Western Roe Deer Capreolus capreolus1,300
  2. Eurasian Red Squirrel Sciurus vulgaris1,017
  3. Eurasian Beaver Castor fiber724
  4. Common Hedgehog Erinaceus europaeus581
  5. Red Fox Vulpes vulpes521
  6. European Rabbit Oryctolagus cuniculus498
  7. Brown Hare Lepus europaeus472
  8. European Mole Talpa europaea408
  9. Wild Boar Sus scrofa344
  10. Brown Rat Rattus norvegicus290

Insects

  1. Yellow-legged Hornet Vespa velutina9,614
  2. European Hornet Vespa crabro7,415
  3. Asian Lady Beetle Harmonia axyridis4,697
  4. Seven-spotted Lady Beetle Coccinella septempunctata3,644
  5. European Peacock Butterfly Aglais io2,541
  6. Red Admiral Vanessa atalanta2,531
  7. Speckled Wood Pararge aegeria2,076
  8. European Firebug Pyrrhocoris apterus2,024
  9. Western Honey Bee Apis mellifera1,862
  10. Common Drone Fly Eristalis tenax1,769

Spiders and kin

  1. Cross Orbweaver Araneus diadematus1,735
  2. European Nursery Web spider Pisaura mirabilis1,282
  3. Wasp Spider Argiope bruennichi1,049
  4. Goldenrod Crab Spider Misumena vatia919
  5. Fencepost jumping spider Marpissa muscosa912
  6. Walnut Orbweaver Nuctenea umbratica474
  7. Canestrini's Harvestman Opilio canestrinii433
  8. Long-bodied Cellar Spider Pholcus phalangioides400
  9. Zebra Jumping Spider Salticus scenicus299

Reptiles

  1. Common Slowworm Anguis fragilis740
  2. Common Wall Lizard Podarcis muralis630
  3. Viviparous Lizard Zootoca vivipara448
  4. Pond Slider Trachemys scripta340

Amphibians

  1. Fire Salamander Salamandra salamandra1,570
  2. European Common Frog Rana temporaria1,415
  3. European Toad Bufo bufo1,383
  4. Alpine Newt Mesotriton alpestris920
  5. Smooth Newt Lissotriton vulgaris327

Mollusks

  1. Brown-lipped Snail Cepaea nemoralis1,303
  2. Garden Snail Cornu aspersum1,166
  3. Roman Snail Helix pomatia523
  4. Girdled Snail Hygromia cinctella372
  5. Leopard Slug Limax maximus301

How a trip works

A trip has its own trail of lessons: meet six species, match them to new photos, then practice with four choices. Species you learn go into your Fieldbook, and starting a trip earns its Passport stamp. Your home place stays as it is.

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Species lists and counts from research-grade observations on iNaturalist, as of October 2026. Free, with no ads, no account and no purchases.